@Bigal4 Imagine this scenario; you buy a new stick to replace your box and put the box away in a cupboard. Some months later, you decide to sell the old box. Because you didn’t return it to factory settings, your account information is still on it and the new owner is able to use it at your expense. Of course, the box would have reappeared on your device list (if you removed it), but not everyone checks that. So in my opinion it’s just the NowTV system verifying that the box is still in your possession.